Using a custom Solidity compiler

Hardhat supports custom compilers like solx. You’ll need to manually download the compiler binary (for example, from the solx releases page) and reference it in the Solidity settings of your hardhat.config.ts file.

Configure the path to the custom compiler binary using the path property. You can use this property in both the simple and extended formats of the solidity property. For example, using the simple format:

hardhat.config.ts

import { defineConfig } from "hardhat/config";

export default defineConfig({
  //...
  solidity: {
    version: "0.8.29",
    path: "/path/to/solx", // Replace with the actual path to the solx binary
  },
});

Or using the extended format:

hardhat.config.ts

import { defineConfig } from "hardhat/config";

export default defineConfig({
  //...
  solidity: {
    compilers: [
      {
        version: "0.8.29",
        path: "/path/to/solx",
      },
    ],
  },
});